diff --git a/isisd/isis_zebra.c b/isisd/isis_zebra.c
index e2f1dc5..8e12208 100644
--- a/isisd/isis_zebra.c
+++ b/isisd/isis_zebra.c
@@ -97,7 +97,7 @@
   stream_get (ifname_tmp, s, INTERFACE_NAMSIZ);
 
   /* Lookup this by interface index. */
-  ifp = if_lookup_by_name (ifname_tmp);
+  ifp = if_lookup_by_name ((char *) ifname_tmp);
 
   /* If such interface does not exist, indicate an error */
   if (!ifp)
@@ -169,7 +169,7 @@
 {
   struct connected *c;
   struct prefix *p;
-  u_char buf[BUFSIZ];
+  char buf[BUFSIZ];
 
   c = zebra_interface_address_read (ZEBRA_INTERFACE_ADDRESS_ADD,
 				    zclient->ibuf);